Preparation method for energy-storing and temperature-adjusting phase-change material and fibres thereof

A phase-change material and phase-change fiber technology, which is applied in the chemical characteristics of fibers, materials for heat exchange, chemical instruments and methods, etc., can solve the problem of not having high temperature stability, and achieve strong energy storage and temperature control ability and preparation cost. Low, agglomeration-preventing effect

Active Publication Date: 2015-09-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN 102321452 B discloses a cross-linked solid-solid phase change material, but because plant fiber is used as the base material, it does not have the characteristics of high temperature stability

Method used

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  • Preparation method for energy-storing and temperature-adjusting phase-change material and fibres thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing an energy-storage temperature-regulating phase-change fiber, specifically:

[0022] First, 30g of halloysite nanotubes (about 200nm in length and 10-50nm in diameter), 10g of triallyl isocyanurate, 10g of polyethylene glycol diacrylate, and 1g of initiator Add ammonium sulfate and 49g of polyethylene glycol (the number average molecular weight is about 1000) into 200ml of deionized water, adopt the method of decompression ultrasonic dispersion, under the conditions of pressure 200Pa ~ 500Pa, ultrasonic frequency 20 ~ 40KHz, the temperature is raised to 70 °C for 5 hours. After centrifugation and dehydration, a phase change material with high thermal stability and energy storage and temperature adjustment was obtained, and dried at 80°C for 12 hours for use.

[0023] 30g of phase-change materials dried and 70g of polyethylene terephthalate chips were blended and granulated by a twin-screw extruder at 260°C, and melt-spun by a melt-spinning machine...

Embodiment 2

[0025] A method for preparing an energy-storage temperature-regulating phase-change fiber, specifically:

[0026] First, 60g of carbon nanotubes (about 600nm in length and 2 to 200nm in diameter), 5g of triallyl isocyanurate, 5g of polyethylene glycol diacrylate, and 0.1g of initiator persulfuric acid Add ammonium and 29.9g of polyethylene glycol (the number average molecular weight is about 6000) into 200ml of deionized water, adopt the method of decompression ultrasonic dispersion, under the conditions of pressure 200Pa ~ 500Pa, ultrasonic frequency 20 ~ 40KHz, the temperature is raised to 70 °C for 2 hours. After centrifugation and dehydration, a phase change material with high thermal stability and energy storage and temperature adjustment was obtained, and dried at 80°C for 12 hours for use.

[0027] The dry-processed 5g phase change material and 95g polytrimethylene terephthalate chips were granulated through a twin-screw extruder at 270°C, and melt spun through a melt ...

Embodiment 3

[0029] A method for preparing an energy-storage temperature-regulating phase-change fiber, specifically:

[0030] First, 40g of porous nano-silica (particle size is about 50nm), 5g of triallyl isocyanurate, 5g of polyethylene glycol diacrylate, 0.1g of initiator ammonium persulfate, 49.9 Add 2 g of polyethylene glycol (the number average molecular weight is about 2000) into 200ml of deionized water, adopt the method of decompression ultrasonic dispersion, under the conditions of pressure 200Pa ~ 500Pa, ultrasonic frequency 20 ~ 40KHz, heat up to 70 ° C to react 4 Hour. After centrifugation and dehydration, the energy-storage temperature-regulating phase-change material was obtained, and dried at 80°C for 12 hours for use.

[0031] The dried 10g of phase change material and 90g of polyethylene naphthalate chips were granulated through a twin-screw extruder at 305°C, and melt spun through a melt spinning machine to obtain energy storage and temperature-regulated polyparaphenyle...

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Abstract

The invention provides a preparation method for an energy-storing and temperature-adjusting phase-change material and fibres thereof. The preparation method for the energy-storing and temperature-adjusting phase-change material is characterized by comprising the following specific steps: placing porous nano-powder, triallyl isocyanurate, polyethylene glycol acrylate, polyethylene glycol and an initiator in solvent water, reacting for 2-5 hours at 65-75 DEG C by means of reduced pressure ultrasonic dispersion, and finally centrifugally dewatering to obtain the energy-storing and temperature-adjusting phase-change material. The energy-storing and temperature-adjusting phase-change material is subjected to drying treatment, then sliced with polymers and blended and granulated through a double-screw extruder, and then subjected to melt-spinning to obtain the energy-storing and temperature-adjusting fibres. The phase-change energy-storing material prepared by the preparation method provided by the invention has the characteristic of high energy-storing and temperature-controlling capacity, and has the advantages of low preparation cost, good heat-resistant stability and simple operation.

Description

technical field [0001] The invention belongs to the field of preparation of intelligent temperature-regulating fibers, and in particular relates to a high thermal stability energy storage temperature-regulating phase change material and a preparation method of fibers thereof. Background technique [0002] With the improvement of social economy and living standards, people's demand for comfort, health care, safety and other fibers and textile products is increasing. In order to meet people's pursuit of functional textiles, the development of high-tech fibers has become the focus of the fiber textile industry. hot spots of competition. [0003] Heat storage and temperature regulating fiber is a typical high-tech fiber, which can achieve the function of temperature control and temperature regulation by adjusting the microspace environment outside the human body. At present, the preparation methods of heat storage and temperature regulating fibers include microcapsule wet spinn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F226/06D01F1/10C09K5/02
Inventor 朱美芳相恒学夏维陈文萍
Owner DONGHUA UNIV
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